Which of the following is the correct method for using a digital multimeter to measure DC voltage across an automotive bulb?

1. Set the meter to DC Amps and connect it in series with the bulb
2. Set the meter to DC Volts and connect the test leads in parallel across the bulb
3. Set the meter to Ohms and connect it while the bulb is illuminated
4. Set the meter to AC Volts and connect it in series with the battery